My previous home had windows on 2 walls of the kitchen, birds thought it was a fly through, my choice was to keep the windows 'dirty'. It worked.
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Male hummingbirds are notorious to fight themselves in window reflections on your home, decals will help.
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Garden & Be Well, XOT
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You realize clearly how I know this? Been there done that, buried the birds. Years have passed since it happened, I remember it like yesterday.